feat(HLS): Add allowRangeRequestsToGuessMimeType config (#7979)

Close #7973
shaka-project · Jan 29, 2025 · 195fd2b · 195fd2b
1 parent 45c37d3
commit 195fd2b
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Showing 4 changed files with 15 additions and 2 deletions.
diff --git a/demo/config.js b/demo/config.js
@@ -291,7 +291,9 @@ shakaDemo.Config = class {
         .addBoolInput_('Allow LL-HLS byterange optimization',
             'manifest.hls.allowLowLatencyByteRangeOptimization')
         .addNumberInput_('override the Update time of the manifest',
-            'manifest.hls.updatePeriod');
+            'manifest.hls.updatePeriod')
+        .addBoolInput_('Allow range request to guess mime type',
+            'manifest.hls.allowRangeRequestsToGuessMimeType');
   }
 
   /** @private */

diff --git a/externs/shaka/player.js b/externs/shaka/player.js
@@ -1220,7 +1220,8 @@ shaka.extern.DashManifestConfiguration;
  *   disableCodecGuessing: boolean,
  *   disableClosedCaptionsDetection: boolean,
  *   allowLowLatencyByteRangeOptimization: boolean,
- *   updatePeriod: number
+ *   updatePeriod: number,
+ *   allowRangeRequestsToGuessMimeType: boolean
  * }}
  *
  * @property {boolean} ignoreTextStreamFailures
@@ -1314,6 +1315,11 @@ shaka.extern.DashManifestConfiguration;
  *   trigger a new download of the manifest.
  *   <br>
  *   Defaults to <code>-1</code>.
+ * @property {boolean} allowRangeRequestsToGuessMimeType
+ *   If set to true, the HLS parser will use range request (only first byte) to
+ *   guess the mime type.
+ *   <br>
+ *   Defaults to <code>false</code>.
  * @exportDoc
  */
 shaka.extern.HlsManifestConfiguration;

diff --git a/lib/hls/hls_parser.js b/lib/hls/hls_parser.js
@@ -4522,6 +4522,10 @@ shaka.hls.HlsParser = class {
         (error.code == shaka.util.Error.Code.HTTP_ERROR ||
          error.code == shaka.util.Error.Code.BAD_HTTP_STATUS)) {
         headRequest.method = 'GET';
+        if (this.config_.hls.allowRangeRequestsToGuessMimeType) {
+          // Only requesting first byte
+          headRequest.headers['Range'] = 'bytes=0-0';
+        }
         const response = await this.makeNetworkRequest_(
             headRequest, requestType, {type}).promise;
 

diff --git a/lib/util/player_configuration.js b/lib/util/player_configuration.js
@@ -180,6 +180,7 @@ shaka.util.PlayerConfiguration = class {
         disableClosedCaptionsDetection: false,
         updatePeriod: -1,
         allowLowLatencyByteRangeOptimization: true,
+        allowRangeRequestsToGuessMimeType: false,
       },
       mss: {
         manifestPreprocessor: